The Gideon Quarries are a real slate backwater. This is partly due to the more erratic nature of the rock - whilst there is some good rock hidden in this working, there is also a lot of loose and friable choss. If adventure is your thing, there are some really fine routes and it is a great place to hide from the crowds on busy days.
The lowest working is home to the off-width challenges of The Mancer Direct and Liquid Armbar, if you fancy yourself as a wideboy or girl. Just above the road is Film Set Quarry and the great slabs of The Second Coming and Near Dark (After Dark). The bridging testpiece Gender Bender is also worth a look, and The Bone People and Synthetic Life offer some steep climbing - for slate. The Gideon Slab classics are Giddy Variations... and Pandora Plays Sax, and right up at the back is Cracking Up. There are also several isolated sport routes worth hunting out.